Overlay Sounds are a great new feature in v2.2.0.

They allow you to quickly adjust the sounds and levels assigned to 16th note and triplet partials, as well as a sound for the start of the bar and for a custom marker.

These are in addition to the Rhythms and Sounds you can program into the two Metronomes. That means you can add overlay sounds to any of your existing presets.

Here’s how you can use the Overlay Sounds to add voice counting to your rhythms (if you have the Pro upgrade)